0029284: General: Fast Collisions floor floating point values rather than ceil them which Slow Collisions do, causes changes in gameplay

Description

In 2.1.3 if you did a check on an object at 0.7, 0.7 then this would become 1, 1 which users have built their games to do however with the addition of fast collisions then 0.7, 0.7 becomes 0, 0 and so there's noticeable differences in gameplay.

We need to either clarify whether this is a bug we've intended to introduce and message out or something we need to fix.

Steps To Reproduce

1) Run the sample in 2.1.3 Runtime
2) See that the values gets ceiled
3) Run the sample in 2.1.4 Runtime
4) See that the values get floored